Question

A student arranged an electric circuit as shown alongside:



He would observe:
(1) no reading in either the ammeter or the voltmeter
(2) no reading in the voltmeter but a reading in the ammeter
(3) no reading in the ammeter but a reading in the voltmeter
(4) readings in both the ammeter and the voltmeter

Answer 1

As the ammeter is connected in series with right polarity to the battery so ammeter will give the required reading but the voltmeter is not properly connected to the resistor, as the switch to the negative terminal of the voltmeter is open. because the voltmeter is not connected across both ends of the resistor, that's why it won't be able to measure the potential difference or voltage drop across the resistor. So the voltmeter will show no reading.

Hence the correct option is Option 2.